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Author Cherednichenko, Oleksandr
Affiliation Admiral Makarov National University of Shipbuilding 9 Heroiv Ukraine Ave., 54025, Mykolayiv, Ukraine Operation of Ship’s Power Plants and Heat Power Department
E-mail cherednichenko.aleksandr65@gmail.com
Author Tkach, Mykhaylo
Affiliation Admiral Makarov National University of Shipbuilding 9 Heroiv Ukraine Ave., 54025, Mykolayiv, Ukraine Department of Engineering Mechanics and Mechanical Technology
E-mail mykhaylo.tkach@gmail.com
Author Timoshevskiy, Boris
Affiliation Admiral Makarov National University of Shipbuilding 9 Heroiv Ukraine Ave., 54025, Mykolayiv, Ukraine Department of Internal Combustion Engines, Plants and Technical Exploitation
E-mail borys.tymoshevskyy@gmail.com
Author Havrysh, Valerii
Affiliation Mykolayiv National Agrarian University Department of Tractors and Agricultural Machinery, Operating and Maintenance 9 Georgiy Gongadze St., 54020 Mykolayiv, Ukraine
E-mail havryshvi@mnau.edu.ua
Author Dotsenko, Serhii
Affiliation Admiral Makarov National University of Shipbuilding, Pervomaisk Polytechnic Institute 109 Odeska St., 55202 Pervomaisk, Mykolayiv region, Ukraine
E-mail admin@ppi.net.ua
ISSN printed 1733-8670
URI http://repository.am.szczecin.pl/handle/123456789/2559
Abstract Due to environmental, energy, and operating cost constraints, the number of liquefied natural gas (LNG)–powered ships is increasing. To avoid decreasing the thermal efficiency of two-stroke, low-speed diesel engines, high-pressure gas injection is used. The specific energy consumption of a gas fuel compressor is around 0.35 kWh/kg, which has a negative impact on the efficiency of ship power plants. To reduce the primary energy consumption of a gas fuel supply system, waste heat recovery (WHR) technologies may be used. This study investigated whether WHR metal hydride technology was suitable for improving the efficiency of low-grade heat waste in marine diesel engines. The key factors of this technology were revealed, and the design scheme was described. Working fluids were also analyzed, and a mathematical model of a WHR metal hydride plant was developed, and the results were represented. The calculations showed that the above technology could increase the operating power of a propulsion plant by 5.7–6.2%. The results demonstrate the possibility of applying WHR metal hydride equipment for gas fuel compressor drives in LNG-powered ships. The novelty of this study lies in the investigation of metal hydride technology for application in the waste heat recovery systems of LNG-powered ships.
Pages 9-15
Publisher Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie
Keywords waste heat recovery
Keywords low-speed engine
Keywords metal-hydride
Keywords hydrogen
Keywords LNG-powered ship
Keywords total waste heat utilization factor
Title Improving the efficiency of a gas-fueled ship power plant using a Waste Heat Recovery metal hydride system
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ISSN on-line 2392-0378
Language English
Funding No data
Figures 2
Tables 4
DOI 10.17402/346
Published 2019-10-04
Accepted 2019-09-16
Recieved 2019-09-06

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